/*
 * @Description: 
 * @Version: 2.0
 * @Autor: ycw
 * @Date: 2021-09-27 15:41:51
 * @LastEditors: ycw
 * @LastEditTime: 2022-01-28 15:43:58
 */
import axios from 'axios'
import { ElMessage } from 'element-plus'
import { getToken } from '@/utils/cookies'
import { ErrorCode } from '@/utils/errorCode'
import { tansParams } from '@/utils/ruoyi'

axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'

// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: process.env.VUE_APP_BASE_API,
  // 超时
  timeout: 10000
})

// request拦截器
service.interceptors.request.use((config: any) => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  if (getToken() && !isToken) {
    config.headers.Authorization = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
  }
  // get请求映射params参数
  if (config.method === 'get' && config.params) {
    let url = config.url + '?' + tansParams(config.params)
    url = url.slice(0, -1)
    config.params = {}
    config.url = url
  }
  return config
}, error => {
  console.log(error)
  Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use((res: any) => {
  // 未设置状态码则默认成功状态
  const code = res.data.code || 200

  const msg = ErrorCode[code] || res.data.msg || ErrorCode.default
  if (code === 401) {
    ElMessage({
      message: msg,
      type: 'error'
    })
    return Promise.reject(res)
  } else if (code === 500) {
    ElMessage({
      message: msg,
      type: 'error'
    })
    return Promise.reject(new Error(msg))
  } else if (code !== 200) {
    return Promise.reject(res)
  } else {
    return res.data
  }
},
error => {
  let { message } = error
  if (message === 'Network Error') {
    message = '后端接口连接异常'
  } else if (message.includes('timeout')) {
    message = '系统接口请求超时'
  } else if (message.includes('Request failed with status code')) {
    message = '系统接口' + message.substr(message.length - 3) + '异常'
  }
  ElMessage({
    message: message,
    type: 'error',
    duration: 5 * 1000
  })
  return Promise.reject(error)
}
)
// 通用下载方法
export function download(url, params, filename) {
  return service.post(url, params, {
    transformRequest: [(params) => {
      return tansParams(params)
    }],
    headers: {
        'Content-Type': 'application/x-www-form-urlencoded'
    },
    responseType: 'blob'
  }).then((data) => {
    const content:any = data
    const blob = new Blob([content])
    if ('download' in document.createElement('a')) {
      const elink = document.createElement('a')
      elink.download = filename
      elink.style.display = 'none'
      elink.href = URL.createObjectURL(blob)
      document.body.appendChild(elink)
      elink.click()
      URL.revokeObjectURL(elink.href)
      document.body.removeChild(elink)
    } else {
      (navigator as any).msSaveBlob(blob, filename)
    }
  }).catch((r) => {
    console.error(r)
  })
}

export default service
